三轴稳定航天器姿态最优控制方法-研究

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1、哈尔滨工业大学工学硕士学位论文costfunctionandmanipulatingthem,weareabletoensureconvergenceoftheseriesandachievesemi-globalasymptoticstability.Inaddition,thistechniquecanovercometheproblemoflarge-control-for-large-initial-statesencounteredbysomeotherpowerseriesexpansionbasedcontrollaws.Tuningtheparametersin

2、perturbationtermsalsoenablesustomodulatethesystemtransientperformanceinaflexibleway.Thesynergeticoptimalproblemofanaffinenonlineardynamicsreferringtothedesignofslidingsurfaceinthevariablestructurecontrolisstudiedandthesynergeticoptimalcontrolschemeisproposed.Thenitisproventohaveoptimalitypro

3、pertywithrespecttoameaningfulcostfunctional.Thecontroltechniquecombinestheadvantagesofvariablestructurecontrolandoptimalcontrol.Atthesametime,itavoidsthechatteringphenomenoncausedbydiscontinuityinthevariablestructurecontrolandfulfillsthecontrolmissionofspacecraftattitudetrackingtime-varyings

4、ignalwithgoodrobustness.KeywordsAttitudecontrol;Optimalcontrol;Pseudospectralmethod;θ-Dmethod;Synergeticoptimalcontrol-III-哈尔滨工业大学工学硕士学位论文目录摘要...........................................................................................................................IAbstract..................

5、.....................................................................................................II第1章绪论................................................................................................................11.1研究背景及意义.............................................................

6、..................................11.2姿态控制系统的组成及分类...........................................................................21.2.1姿态控制系统研究现状............................................................................41.2.2三轴稳定航天器姿态的最优控制研究现状及分析................................71.3本文的主要研究内容...

7、....................................................................................9第2章航天器数学模型与最优控制基础知识......................................................102.1引言...................................................................................